Your PM can make you good looking charts and do basic summary statistics (mean, median, percentiles, etc.) I would call that business analyst work. It's probabl

Your PM can make you good looking charts and do basic summary statistics (mean, median, percentiles, etc.) I would call that business analyst work. It's probably good enough in a lot of situations. But if you actually need statistical analysis, there's no substitute for a statistician. Even working scientists in the hard sciences routinely screw up their stats and should be (but mostly aren't) consulting with a staff statistician for their papers.